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3/29/2024
 
 
 
 
 
Owner: Union Pacific Railroad Company
Model:Alco 4-8-8-4Built As:UP 4012 (4-8-8-4)
Serial Number:69583Order No:S-1844
Frame Number:23¾X32 cylinders, 68" driversBuilt:8/1941
Notes:Schenectady 08/1941, retired 02/62, donated 08/64 to Steamtown
Other locos with this serial:  UP 4012(4-8-8-4)
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UP 4012
Title:  UP 4012
Description:  UP 4012 simmers in Green River, Wyoming on November 29, 1941. In 1 month, the world will have changed. The US will have entered WW2, and 4012 and its sisters will be dragging long trains of supplies across the Wasatch range. Obtained from Union Pacific Steam: Big Boy Portraits (Bush, Ehernberger)
Photo Date:  11/29/1941  Upload Date: 6/2/2021 10:59:44 PM
Location:  Green River, WY
Author:  O.C.Perry
Categories:  Roster,Bridge,Yard,Steam,Track,Action
Locomotives:  UP 4012(4-8-8-4)
Views:  515   Comments: 0
Extra 4012 West
Title:  Extra 4012 West
Description:  Extra 4012 West rumbles through west from Green River with 102 cars on November 30, 1941. 4012 is making 20 miles per hour with the heavy train, just west of Green River. On the head end are some hoppers and gondolas, followed by a long string of reefers. The exact location is unknown, so feel free to comment if you might know. Obtained from Union Pacific Steam: Big Boy Portraits (Bush, Ehernberger)
Photo Date:  11/30/1941  Upload Date: 6/5/2021 8:59:32 PM
Location:  Green River, WY
Author:  R.H.Kindig
Categories:  Scenic,RollingStock,Steam,Track,Action
Locomotives:  UP 4012(4-8-8-4)
Views:  513   Comments: 1
Big Boy 4012
Title:  Big Boy 4012
Description:  In Cheyenne, UP 4012 and another Big Boy rest in the shadow of the coaling tower. Cheyenne was one of the principal homes for the Big Boys, and so the yard was equipped with coal, water, and repair facilities, complete with a 126 turntable, just large enough to squeeze a Big Boy on with three feet of overhang on each end. Obtained from Union Pacific Steam: Big Boy Portraits (Bush, Ehernberger)
Photo Date:  5/5/1946  Upload Date: 7/9/2022 12:57:09 AM
Location:  Cheyenne, WY
Author:  R.H.Kindig
Categories:  Roster,Yard,Steam
Locomotives:  UP 4012(4-8-8-4)
Views:  284   Comments: 0
Title: 
Description: 
Photo Date:  4/1/1950  Upload Date: 7/5/2011 3:07:31 PM
Location:  Sherman Hill, WY
Author:  scan of postcard/Paul Gribble originals
Categories:  Roster,Scenic,RollingStock,Steam,Passenger,Track,Action
Locomotives:  UP 4012(4-8-8-4) UP 4015(4-8-8-4)
Views:  3363   Comments: 0
Big Boy 4012
Title:  Big Boy 4012
Description:  UP 4012 rests in Rawlins. 4012 will become one of the 8 preserved Big Boys when it was donated to Steamtown, USA, then located in Bellows Falls. In 1984, Steamtown relocated to its current home in Scranton, Pennsylvania. Today, I am happy to say, the Big Boy sees fellow ALCOs from the Delaware-Lackawanna on a regular basis, including several RS-3s and and the only remaining C636, not to mention the other ALCO products owned by Steamtown. Obtained from Union Pacific Steam: Big Boy Portraits (Bush, Ehernberger)
Photo Date:  11/1/1954  Upload Date: 6/4/2021 2:17:34 PM
Location:  Rawlins, WY
Author:  Walter F.J. Kraweic
Categories:  Roster,Yard,Steam
Locomotives:  UP 4012(4-8-8-4)
Views:  255   Comments: 0
Union Pacific 4-8-8-4 4012
Title:  Union Pacific 4-8-8-4 4012
Description:  With a passenger train on the next track, 4-8-8-4 4012 departs Cheyenne in April 1956. 4012 came from ALCo in October 1941. It was retired and placed in storage in February 1962. In August 1964, 4012 was donated to Steamtown.
Photo Date:  4/1/1956  Upload Date: 10/9/2023 7:00:22 PM
Location:  Cheyenne, WY
Author:  Dave Straight
Categories: 
Locomotives:  UP 4012(4-8-8-4)
Views:  67   Comments: 0
UP 4-8-8-4 #4012
Title:  UP 4-8-8-4 #4012
Description:  Beautiful action shot of a double header with UP Big Boy #4012 in the lead. No exact date was given. This loco now resides at the Steamtown USA Museum in Scranton, PA. John William photo. Lucas Connor (see comment below) believes this photo might be closer to 1956 since it appears to have been recently repaired and outshopped. Seems fairly good estimate. Thanks, Lucas!
Photo Date:  6/1/1956  Upload Date: 12/27/2018 6:24:37 AM
Location:  Cheyenne, WY
Author:  Gary Everhart
Categories:  Roster,Steam
Locomotives:  UP 4012(4-8-8-4)
Views:  1106   Comments: 1
UP 4012
Title:  UP 4012
Description:  Union Pacific 4012 arrives in Laramie with a manifest freight. After being serviced, it will be turned on the turntable and placed on an eastbound freight. In the background are boxcars and reefers from SP and CN behind another Big Boy or 3900-series Challenger. In the far background, an early EMD switcher pushes a Frisco composite boxcar. This image was taken from the University Avenue Overpass. Out of frame to the left is the steam servicing area, and directly behind the camera is the Laramie depot. Obtained from Union Pacific Steam: Big Boy Portraits (Bush, Ehernberger)
Photo Date:  8/25/1956  Upload Date: 9/19/2021 2:44:06 PM
Location:  Laramie, WY
Author:  Emil Arbrecht
Categories:  Roster,RollingStock,Yard,Steam,Action
Locomotives:  UP 4012(4-8-8-4)
Views:  263   Comments: 0
Big Boy 4012
Title:  Big Boy 4012
Description:  UP 4012 thunders along between Speer and Emkay on the first day of November. The landscape is covered in snow, and more is falling still. The 4000s were most impressive during winter, when their massive plumes of smoke towered over the Wyoming landscape. Obtained from Union Pacific Steam: Big Boy Portraits (Bush, Ehernberger)
Photo Date:  11/1/1956  Upload Date: 9/19/2021 2:07:40 PM
Location:  Emkay, WY
Author:  Stan Kistler
Categories:  Winter,Steam,Action
Locomotives:  UP 4012(4-8-8-4)
Views:  225   Comments: 0
UP 4012
Title:  UP 4012
Description:  Big Boy 4012 rests in the yard at Laramie late in 1958. The 4000-series behemoth was built in 1941 by the American Locomotive Company, and would become the 13th of 25 Big Boys Union Pacific would come to own. The 4012 would be retired in 1959 with the rest of UPs Big Boy fleet. The engine would then be donated in 1962 to Steamtown, USA, a tourist operation in Bellows Falls, Vermont. The 4012 was originally to be accompanied by a 4-6-6-4 Challenger and office car as part of the donation, but only the 4012 would make it to Vermont. In 1984, the engine would be moved to its current home in Scranton, Pennsylvania at the Steamtown National Historic Site. Obtained from Union Pacific Steam: Big Boy Portraits (Bush, Ehernberger)
Photo Date:  10/25/1958  Upload Date: 7/10/2022 4:22:49 AM
Location:  Laramie, WY
Author:  Stan Kistler
Categories:  Roster,Yard,Steam
Locomotives:  UP 4012(4-8-8-4)
Views:  207   Comments: 0
Big Boys Refueling
Title:  Big Boys Refueling
Description:  4 Big Boys line up for servicing at the massive coaing tower in Cheyenne. 4012 will depart for Green River, while 4015 and 4017 have just arrived from Laramie. Obtained from Union Pacific Steam: Big Boy Portraits (Bush, Ehernberger)
Photo Date:  10/26/1958  Upload Date: 6/2/2021 11:13:51 PM
Location:  Cheyenne, WY
Author:  Stan Kistler
Categories:  Yard,Steam,Track,Action
Locomotives:  UP 4015(4-8-8-4) UP 4012(4-8-8-4)
Views:  527   Comments: 0
4012 leaving Cheyenne
Title:  4012 leaving Cheyenne
Description:  UP 4012 thunders out of Cheyenne and past Tower A westbound in October, 1958. Clouds of smoke on the east end of the yard means steam still has a presence in Cheyenne, although that will not last until next year. 4012s train has 4 stock cars on the head-end. Taken from the Colorado & Southern bridge over the UP tracks. Obtained from Union Pacific Steam: Big Boy Portraits (Bush, Ehernberger)
Photo Date:  10/26/1958  Upload Date: 5/31/2021 12:54:59 PM
Location:  Cheyenne, WY
Author:  Stan Kistler
Categories:  RollingStock,Bridge,Yard,Steam,Track,Action
Locomotives:  UP 4012(4-8-8-4)
Views:  280   Comments: 0
UP 4016
Title:  UP 4016
Description:  I climbed up the hillside a ways to get some panoramic shots of the yard and collection of power. That's UP #4016, a 4-8-8-4 Big Boy.
Photo Date:  6/8/1965  Upload Date: 7/14/2013 5:30:58 PM
Location:  North Walpole, NH
Author:  Ted Houghton
Categories:  Roster
Locomotives:  UP 4012(4-8-8-4)
Views:  2162   Comments: 0
A view from the hillside of the Steamtown complex.
Title:  A view from the hillside of the Steamtown complex.
Description:  This shows how tightly packed the display of locomotives was.
Photo Date:  6/8/1965  Upload Date: 7/14/2013 5:31:12 PM
Location:  North Walpole, NH
Author:  Ted Houghton
Categories:  Yard
Locomotives:  UP 4012(4-8-8-4)
Views:  1400   Comments: 0
Steamtown - 1 of 6
Title:  Steamtown - 1 of 6
Description: 
Photo Date:  8/1/1965  Upload Date: 1/26/2017 2:54:44 PM
Location:  Bellows Falls, VT
Author:  Christopher Smith
Categories: 
Locomotives:  UP 4012(4-8-8-4)
Views:  743   Comments: 0
Steamtown - 2 of 6
Title:  Steamtown - 2 of 6
Description: 
Photo Date:  8/1/1965  Upload Date: 1/26/2017 2:55:06 PM
Location:  Bellows Falls, VT
Author:  Christopher Smith
Categories: 
Locomotives:  UP 4012(4-8-8-4)
Views:  635   Comments: 0
UP 4012
Title:  UP 4012
Description: 
Photo Date:  9/1/1969  Upload Date: 3/26/2011 2:04:28 PM
Location:  Bellows Falls, VT
Author:  Larry De Bert
Categories: 
Locomotives:  UP 4012(4-8-8-4)
Views:  1772   Comments: 0
UP 4012 - Handyman's special.
Title:  UP 4012 - Handyman's special.
Description: 
Photo Date:  8/1/1974  Upload Date: 12/24/2012 2:33:32 PM
Location:  Bellows Falls, VT
Author:  Philip M. Goldstein
Categories: 
Locomotives:  UP 4012(4-8-8-4)
Views:  1429   Comments: 0
Big Boy
Title:  Big Boy
Description:  Steamtown had, and still has, one of UPs famous Big Boy 4-8-8-4s. Dad shot it at Bellows Falls with my brother John posing next to it, giving some sense of the size. Its now part of the Steamtown NHS collection, next to the parking lot at Scranton.
Photo Date:  8/29/1974  Upload Date: 3/1/2016 4:49:47 AM
Location:  Bellows Falls, VT
Author:  Tom Beckett
Categories:  Roster,Yard,Steam
Locomotives:  UP 4012(4-8-8-4)
Views:  720   Comments: 0
UP 4-8-8-4 #4012
Title:  UP 4-8-8-4 #4012
Description:  132' 10" in length, 560 tons in weight, 68" driving wheels, and capable of producing 6,360 hp at 42 mph...
Photo Date:  6/1/1978  Upload Date: 9/7/2004 1:03:51 AM
Location:  Scranton, PA
Author:  J. W. Swanberg
Categories: 
Locomotives:  UP 4012(4-8-8-4)
Views:  2687   Comments: 2
Union Pacific Railroad (4-8-8-4) "Big Boy" Steam Locomotive No. 4012
Title:  Union Pacific Railroad (4-8-8-4) "Big Boy" Steam Locomotive No. 4012
Description:  Steamtown
Photo Date:  6/17/1978  Upload Date: 10/6/2006 6:27:22 AM
Location:  Bellows Falls, VT
Author:  Bill Rogerson
Categories:  Steam
Locomotives:  UP 4012(4-8-8-4)
Views:  5208   Comments: 1
Steamtown Bellows Falls Vermont July 1981
Title:  Steamtown Bellows Falls Vermont July 1981
Description:  UP 4-8-8-4 4012 BigBoy with smaller locos.
Photo Date:  7/1/1981  Upload Date: 2/17/2017 3:34:23 PM
Location:  Bellows Falls, VT
Author:  Denis Chartrand
Categories:  Steam
Locomotives:  UP 4012(4-8-8-4)
Views:  565   Comments: 0
UP 4012
Title:  UP 4012
Description:  Big Boy 4012 at Steamtown, long before anyone ever thought to resurrect 4014 from a park in LA.
Photo Date:  10/23/1982  Upload Date: 7/2/2014 3:38:54 AM
Location:  Bellows Falls, VT
Author:  Tom Beckett
Categories:  Roster,Yard,Steam
Locomotives:  UP 4012(4-8-8-4)
Views:  746   Comments: 0
Big Boy
Title:  Big Boy
Description:  UP 4012 at Bellows Falls.
Photo Date:  10/23/1982  Upload Date: 5/6/2013 12:47:05 AM
Location:  Bellows Falls, VT
Author:  Tom Beckett
Categories:  Roster,Yard,Steam
Locomotives:  UP 4012(4-8-8-4)
Views:  755   Comments: 0
UP 4012
Title:  UP 4012
Description:  UPo 4012 when it was in Bellows Falls in '83
Photo Date:  7/1/1983  Upload Date: 12/2/2008 9:24:34 PM
Location:  Bellows Falls, VT
Author:  Terry Terrance
Categories:  Steam
Locomotives:  UP 4012(4-8-8-4)
Views:  2003   Comments: 0
Big Boy Move (1)
Title:  Big Boy Move (1)
Description:  The "movers" arrive at Steamtown's yard in Riverside. The weather, of course, was absolutely scrumptious!!
Photo Date:  11/13/1984  Upload Date: 2/24/2006 1:31:44 PM
Location:  Bellows Falls, VT
Author:  Carl Weber
Categories: 
Locomotives:  UP 4012(4-8-8-4)
Views:  2912   Comments: 0
Big Boy Move (3)
Title:  Big Boy Move (3)
Description:  A pause to uncouple and separate the idler flats, they will bracket the 4012 for the move.
Photo Date:  11/13/1984  Upload Date: 2/24/2006 1:37:20 PM
Location:  Bellows Falls, VT
Author:  Carl Weber
Categories: 
Locomotives:  BM 364(GP39-2) UP 4012(4-8-8-4)
Views:  2271   Comments: 0
Big Boy Move (4)
Title:  Big Boy Move (4)
Description:  What will be the rear half of the train backs down onto the 4012.
Photo Date:  11/13/1984  Upload Date: 2/24/2006 1:43:11 PM
Location:  Bellows Falls, VT
Author:  Carl Weber
Categories: 
Locomotives:  UP 4012(4-8-8-4) BM 364(GP39-2)
Views:  1980   Comments: 0
Big Boy Move (5)
Title:  Big Boy Move (5)
Description:  The 4012 is pulled slowly out of the siding.
Photo Date:  11/13/1984  Upload Date: 2/24/2006 1:44:11 PM
Location:  Bellows Falls, VT
Author:  Carl Weber
Categories: 
Locomotives:  UP 4012(4-8-8-4)
Views:  2365   Comments: 0
Big Boy Move (6)
Title:  Big Boy Move (6)
Description:  The rear half, with the 4012, backs down onto the front idler flat to couple up.
Photo Date:  11/13/1984  Upload Date: 2/24/2006 1:45:10 PM
Location:  Bellows Falls, VT
Author:  Carl Weber
Categories: 
Locomotives:  UP 4012(4-8-8-4)
Views:  1796   Comments: 0
Big Boy Move (7)
Title:  Big Boy Move (7)
Description:  The journey begins! The train treads lightly across the lagoon just south of Riverside, Steamtown's home of many years.
Photo Date:  11/13/1984  Upload Date: 2/24/2006 1:46:01 PM
Location:  Bellows Falls, VT
Author:  Carl Weber
Categories: 
Locomotives:  UP 4012(4-8-8-4)
Views:  2417   Comments: 0
Big Boy Move (9)
Title:  Big Boy Move (9)
Description:  The 4012 is inched around the curve as grease is applied to the rails liberally all the while.
Photo Date:  11/13/1984  Upload Date: 2/24/2006 3:20:45 PM
Location:  Bellows Falls, VT
Author:  Carl Weber
Categories: 
Locomotives:  UP 4012(4-8-8-4)
Views:  2292   Comments: 0
Big Boy Move (10)
Title:  Big Boy Move (10)
Description:  Almost there!....and the snow begins to fly....again!
Photo Date:  11/13/1984  Upload Date: 2/24/2006 3:22:38 PM
Location:  Bellows Falls, VT
Author:  Carl Weber
Categories: 
Locomotives:  UP 4012(4-8-8-4)
Views:  1948   Comments: 0
Big Boy Move (12)
Title:  Big Boy Move (12)
Description:  "Threading the eye of the needle" in downtown Bellows Falls.
Photo Date:  11/13/1984  Upload Date: 2/24/2006 3:25:16 PM
Location:  Bellows Falls, VT
Author:  Carl Weber
Categories: 
Locomotives:  UP 4012(4-8-8-4)
Views:  3231   Comments: 0
Big Boy Move (14)
Title:  Big Boy Move (14)
Description:  Pausing to check the bearings. As it turned out, the 4012 ran remarkably "cool" the entire trip.
Photo Date:  11/13/1984  Upload Date: 2/24/2006 3:27:36 PM
Location:  Westminster Station, VT
Author:  Carl Weber
Categories: 
Locomotives:  UP 4012(4-8-8-4)
Views:  1533   Comments: 0
Big Boy Move (15)
Title:  Big Boy Move (15)
Description:  Stopped at Westminster station to check bearings.
Photo Date:  11/13/1984  Upload Date: 2/25/2006 4:23:02 PM
Location:  Westminster Station, VT
Author:  Carl Weber
Categories: 
Locomotives:  UP 4012(4-8-8-4)
Views:  1382   Comments: 0
Big Boy Move (17)
Title:  Big Boy Move (17)
Description:  A view of the entire train just south of Westminster station.
Photo Date:  11/13/1984  Upload Date: 2/25/2006 4:25:13 PM
Location:  Westminster Station, VT
Author:  Carl Weber
Categories: 
Locomotives:  BM 364(GP39-2) UP 4012(4-8-8-4)
Views:  1491   Comments: 0
Big Boy Move (19)
Title:  Big Boy Move (19)
Description:  Passing through Grout.
Photo Date:  11/13/1984  Upload Date: 2/25/2006 4:27:04 PM
Location:  Grout, VT
Author:  Carl Weber
Categories: 
Locomotives:  UP 4012(4-8-8-4)
Views:  1308   Comments: 0
Big Boy Move (22)
Title:  Big Boy Move (22)
Description:  Going away shot from the overpass at East Putney.
Photo Date:  11/13/1984  Upload Date: 2/25/2006 4:41:51 PM
Location:  East Putney, VT
Author:  Carl Weber
Categories: 
Locomotives:  UP 4012(4-8-8-4)
Views:  1787   Comments: 1
Big Boy Move (24)
Title:  Big Boy Move (24)
Description:  The 4012 at Putney North interlocking.
Photo Date:  11/13/1984  Upload Date: 2/27/2006 5:37:33 PM
Location:  Putney, VT
Author:  Carl Weber
Categories: 
Locomotives:  UP 4012(4-8-8-4)
Views:  1608   Comments: 0
Big Boy Move (27)
Title:  Big Boy Move (27)
Description:  4012 in train at the north end of the CV yard in Brattleboro.
Photo Date:  11/13/1984  Upload Date: 2/27/2006 5:58:47 PM
Location:  Brattleboro, VT
Author:  Carl Weber
Categories: 
Locomotives:  UP 4012(4-8-8-4)
Views:  2482   Comments: 3
Big Boy Move (29)
Title:  Big Boy Move (29)
Description:  Heading south (left to right) across the lagoon on the south side of Brattleboro
Photo Date:  11/13/1984  Upload Date: 2/27/2006 6:10:05 PM
Location:  Brattleboro, VT
Author:  Carl Weber
Categories: 
Locomotives:  BM 364(GP39-2) UP 4012(4-8-8-4) BM 360(GP39-2)
Views:  1205   Comments: 0
Big Boy Move (30)
Title:  Big Boy Move (30)
Description:  Crossing Broad Brook in the extreme northeast corner of Vernon.
Photo Date:  11/13/1984  Upload Date: 2/27/2006 6:11:01 PM
Location:  Vernon, VT
Author:  Carl Weber
Categories: 
Locomotives:  BM 364(GP39-2) UP 4012(4-8-8-4)
Views:  1049   Comments: 0
Big Boy Move (31)
Title:  Big Boy Move (31)
Description:  At Broad Brook in Vernon.
Photo Date:  11/13/1984  Upload Date: 2/27/2006 6:11:46 PM
Location:  Vernon, VT
Author:  Carl Weber
Categories: 
Locomotives:  UP 4012(4-8-8-4)
Views:  814   Comments: 0
Big Boy Move (32)
Title:  Big Boy Move (32)
Description:  Running along the small lagoon south of Broad Brook.
Photo Date:  11/13/1984  Upload Date: 2/27/2006 6:12:26 PM
Location:  Vernon, VT
Author:  Carl Weber
Categories: 
Locomotives:  BM 360(GP39-2) BM 364(GP39-2) UP 4012(4-8-8-4)
Views:  1114   Comments: 0
Big Boy Move (34)
Title:  Big Boy Move (34)
Description:  Passing through East Northfield Junction. The far right track is just a set-out track.
Photo Date:  11/13/1984  Upload Date: 2/27/2006 11:51:14 PM
Location:  Northfield, MA
Author:  Carl Weber
Categories: 
Locomotives:  UP 4012(4-8-8-4)
Views:  916   Comments: 0
Big Boy Move (36)
Title:  Big Boy Move (36)
Description:  On the Mt. Hermon grade at Bennett Brook Road.
Photo Date:  11/13/1984  Upload Date: 2/27/2006 11:56:18 PM
Location:  Northfield, MA
Author:  Carl Weber
Categories: 
Locomotives:  UP 4012(4-8-8-4)
Views:  1737   Comments: 0
Big Boy Move (37)
Title:  Big Boy Move (37)
Description:  Passing the Bernardston Agway feed terminal.
Photo Date:  11/13/1984  Upload Date: 2/27/2006 11:58:24 PM
Location:  Bernardston, MA
Author:  Carl Weber
Categories: 
Locomotives:  UP 4012(4-8-8-4)
Views:  1088   Comments: 0
Big Boy Move (40)
Title:  Big Boy Move (40)
Description:  Westbound local ED-5 passes the 4012 in Greenfield.
Photo Date:  11/13/1984  Upload Date: 2/28/2006 3:28:59 PM
Location:  Greenfield, MA
Author:  Carl Weber
Categories: 
Locomotives:  UP 4012(4-8-8-4)
Views:  1461   Comments: 0
Big Boy Move (42)
Title:  Big Boy Move (42)
Description:  UP 4012 at East Deerfield West. For the time of year and time of day and the sky condition, the light was fading fast!
Photo Date:  11/13/1984  Upload Date: 2/28/2006 3:36:00 PM
Location:  East Deerfield, MA
Author:  Carl Weber
Categories: 
Locomotives:  UP 4012(4-8-8-4)
Views:  1953   Comments: 0


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